Energy Upgrade Loan

Last updated: 23 January 2026

Next review: 11 June 2026

About the Energy Upgrade Loan

Improving your home’s energy efficiency is the best way to reduce your energy bills, make your home comfier, and help combat climate change.

To make retrofit measures such as renewables or insulation more affordable, Waltham Forest Council is offering its 0% interest Energy Upgrade Loan for the second time running.

Please note that applications for the Energy Upgrade Loan are now closed. 

If you have any questions about your application, please contact walthamforestloan@est.org.uk

Energy upgrade loan details

Waltham Forest Council is offering an interest-free loan to eligible owner-occupiers and landlords in Waltham Forest Council areas with an energy rating (EPC) of D or lower to help with the cost of installing: 

  • energy efficiency improvements, for example: roof and loft insulation, wall insulation, floor insulation, windows and doors, double and triple glazing;
  • low and zero emission heating, for example: air source and ground source heat pumps and;
  • renewable energy, for example: solar PV, solar thermal;
  • heat storage, for example electric or heat battery.

You can combine funding for energy efficiency improvements, low and zero emission heat and other renewable technologies, for example, the £7,500 offered by the government through the Boiler Upgrade Scheme. The minimum funding you can apply for under the scheme is £2,000, and the maximum funding is £20,000. 

The loan funding covers up to 100% of the installation cost of your improvement.

Please read the terms and conditions or view our FAQs for more information. 

Energy Saving Trust Homewise

If you are looking for advice on recommended energy upgrades for your home, you can use the online tool Homewise from Energy Saving Trust. 

Following a short assessment, you get a tailored plan for your home. Why not give it a try now?